JPS645147A - Location device for faulty point - Google Patents
Location device for faulty pointInfo
- Publication number
- JPS645147A JPS645147A JP15984787A JP15984787A JPS645147A JP S645147 A JPS645147 A JP S645147A JP 15984787 A JP15984787 A JP 15984787A JP 15984787 A JP15984787 A JP 15984787A JP S645147 A JPS645147 A JP S645147A
- Authority
- JP
- Japan
- Prior art keywords
- receiver
- transmitter
- reference bit
- transmission line
- faulty point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Dc Digital Transmission (AREA)
Abstract
PURPOSE:To calculate the distance of a faulty point of an optical fiber transmission line including a repeater by connecting a transmitter and a receiver via a timing controller. CONSTITUTION:A transmitter 8 is connected to a transmission section 1 of a terminal station 5, a reference bit is sent for each reciprocation time of a transmission line comprising optical fiber lines 6a, 6b and a repeater 7, a receiver 10 is arranged to a reception section 2 of the terminal station 5, a transmission signal sectioned by a reference bit is received and stored. Then the receiver 10 and the transmitter 8 are connected via a timing controller 9, when a fault takes place in the transmission line, the delay time from the reception of the reference bit of the transmission signal stored in the receiver 10 of both terminal stations 5 till the occurrence of the fault is compared respectively. Thus, the distance from both the terminal stations 5 till the faulty point is calculated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15984787A JPS645147A (en) | 1987-06-29 | 1987-06-29 | Location device for faulty point |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15984787A JPS645147A (en) | 1987-06-29 | 1987-06-29 | Location device for faulty point |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS645147A true JPS645147A (en) | 1989-01-10 |
Family
ID=15702537
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15984787A Pending JPS645147A (en) | 1987-06-29 | 1987-06-29 | Location device for faulty point |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS645147A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003083836A (en) * | 2001-09-14 | 2003-03-19 | Fujikura Ltd | Airtightness test terminal structure of corrugated metal sheathed cable |
EP2194670A1 (en) * | 2008-12-05 | 2010-06-09 | Nokia Siemens Networks Oy | Localisation method for bidirectional interruptions of communication links |
-
1987
- 1987-06-29 JP JP15984787A patent/JPS645147A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003083836A (en) * | 2001-09-14 | 2003-03-19 | Fujikura Ltd | Airtightness test terminal structure of corrugated metal sheathed cable |
EP2194670A1 (en) * | 2008-12-05 | 2010-06-09 | Nokia Siemens Networks Oy | Localisation method for bidirectional interruptions of communication links |
WO2010063571A1 (en) * | 2008-12-05 | 2010-06-10 | Nokia Siemens Networks Oy | Localisation method for bidirectional interruptions of communication links |
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